Vaporizer.



W. PETZ.

VAPORIZER.

APPLICATION FILED MAR. 20. 1917.

Patented Aug. 13, 1918 2 SHEETS-.SHEET I.

W. PETZ.

'VAPORIZER.

APPLICATION FILED MAR. 20. 19M.

Patented Aug. 13, 1918.

2 SHEETSSHEET'2.

Urrnn sir :er

'11. OFFICE.

WILLIAM; PETZ, OF FIRTH, NEBRASKA.

VAPOBIZER.

Specification of Letters Patent. Patented Aug..13, 191 Q.

- Application filed March 1917. Serial No. 156,159.

To all whom it may concern:

Be it known that I, lVILLiAM Pn'rz, a citizen of the United States, residing at Firth, in the county of Lancaster and State of Nebraska, have invented certain new and device prior to the introduction of the fuel into the engine.

.The invention has as a further object to provide a vaporizer wherein the exhaust from the engine will be carried through the device for heating and vaporizing the fuel upon the passage thereof through the va-' porizer.

The invention has as a further ob ectto provide a vaporizer having a plurality 'of' exhaust tubes leading therethrough for carrying the exhaust through the device and wherein the fuel will be led by a tortuous passage around the said tubes to strike thereagainst and thus become eifectually va- 7 porized.

And a still further object of the invention is to provide an arrangement wherein any of the fuel not vaporized upon initiallycoming in contact with the exhaust tubes of the device will be collected within cups around the said tubes to thus finally become vaporized by the heat from the said tubes.

Other and incidental objects will appear as the description proceeds and in the drawings wherein I have illustrated the preferred embodiment of the invention and wherein similar reference characters designate corresponding parts throughout the several views:

Figure 1 is a plan view partly in section and illustrating my improved vaporizer in connection with a conventional type of internal combustion engine, this view particulazly showing the arrangement of the car buret'er employed and the hood for inclosing the carbureter.

Fig. 2 is a horizontal sectional View taken through the lower portion of the vaporizer an through the vaporizer,

and particularly showing the fuel cups at the bottom ends of the exhaust tubes Fig. 3 is a vertical sectional view taken on the line 3'-3of Fig. 2 particularly showmg the arrangement of the transverse partitions of the vaporizer, and

" Fig. 4 is a transverse sectional view taken on the line 4+4; of-Fig. 3. I

In carrying out the invention, "my improved vaporizer is formed with"a -pref-' erably rectangular casing 10 having a top.

wall 11 and a bottom wall 12. Extending 6e transversely within the casing are spaced parallel partitions 18 and 14 respectively.

These partitions divide the interior of the easing into a plurality of compartments and at one side of the casing, the side wall thereof is bowed to provide a passage 15 connecting the adjacent ends of the middle and lowermost compartments While, at the opposite side of the casing, the wall thereof is bowed to provide a passage 16 connecting the adjacent ends of the middle and uppermost compartments. Entering through the Wall of the casingat the end of the lowermost compartment opposite the passage 15,-' is an intake passage 17 and extendlng from 30 the Wall of the casing at the end of the uppermost compartment opposite the passage 16 is an outlet passage 18. As will thus be observed, the interior of the casing is divided into a tortuous fuel passage from the intake 17 through the lowermost compartment of the casing, thence through the passage 15 to the middle compartment, thence through the middle compartment and through the passage 16 to the upper com partment and thence through the upper compartment to the outlet passage 18.

Fitted through the casing are transversely spaced centrally arranged exhaust tubes 19 which extend vertically through the top and bottom walls of the casing as Well as through the partitions 13 and 14 and are arranged .in substantially parallel relatipn. Projecting from one side Wall of the casing between the exhaust tubes 19 are similar 10o exhaust tubes 20 and projecting from the opposite side wall of the casing between the exhaust tubes 19 are exhaust tubes 21 also. similar to the exhaust tubes 19 and 20. The

exhaust tubes 20 are arranged in substan- 5- tially parallel relation to extend vertically within the casing 10 and, as particularly shown in Fig. 3, open through the top and bottom walls 11 and 12 of the casing. Also,

the exhaust tubes 21 are arranged substantially parallel and open through the top and bottom Walls 11 and 12. As will thus be seen, the exhausttubes 19 and 91 are disposed in staggered relation and, as illustrated in the drawings, ar. "n preferably rectangular in section. I orincd in the bottom well 12 of the casing the lower ends of the exhaust tubes are, purticularly shown in Figs. 2 and e o ings. l

a plurality of in: ably, the bottom Wall 1., form these cups.

Formed on the upper extremity of the casing 10 are flanges and bolted or otheF wise secured to these flanges is s, oipe 2 lsdapized for connection with the exhaust manifold or exhaust sort of an engine as particularly shown in Fig. 1, the inter nal combustion engine illustrated being or". conventional design. Formed on. the lower extremity of the casing 10 are flanges 26 and bolted or otherwise secured to these flanges is an exhaust pipe 2"? which, intermediate its ends, is formed with elbow 28. Fitted. loosely around the outer extremity of the exhaust pipe 27 is an air in take sleeve 29 which is open, at its outer en and leading from the inner end of sold sleeve the air passage 30 of a carbureoer 31. This earburoter may be of an proved type and is provided with a fuel pipe preferably wound around the discharge pipe 27 so that the fuel within the said fuel pipe will be hearted before being delivered to the carburetor. Extending from the carburetor 31 and connected with the intake passage 17 of the casing 19, a pipe 325 adapted to lead the fuel mixture from the carbureter into the casiiw. Secured to the outlet passage 18 the casing is a ifuel mixture pipe l adopted for connection with the intake manifold or other intake port of the engine end having a throttle valve 35 of approved type interposed therein.

As illustrated in Fig. 1

of the drawings,

' the carbureter 31 is mount-ed Within the elbow 28 of the discharge pipe 2! and connected to the inner terminel of the said pipe, preferably by the bolts or other fastening devices securing the ipe to the casing 10, is a hood or jacket 36 surrounding the elbow of the discharge pi e and inclosing the carbureter 31. This iec :et will thus tend to retain the heat from the discharge pipe for heating the carburetor and consequently the fuel as it is delivered thereto.

As will now be unclerstooirexhaust from the engine 25 will pass out through the pipe '24 and thence through the exhaust tubes 19, 20 and 21 in the casing 10 to finally discharge through the pipe 27. The bested gases of the exhaust will therefore, set to heat the exhaust tubes 19, 20 and 23. and to at all. times. maintain these tubes hot, Fuel lowing through the pipe 82 will as previ ously mentioned first be heated from the middle exhaustpipe 27 and will then lei tee .'arburetcr 3i. \vnich in turn l l i the heat from Within the eclret Thi preliminary heating of t; e

1-; coins-e, tend [O moire the fie tilized. The air' supplied to i: being drawn in through tlr be heats; from the exhaust p I this heated air upon. passing" chi u: i carburetor 31 will further tend to v0 the fuel. From the eurbureter, the fuel :nisture will enter the lower compartment of the vaporizer and wi 1 then follow the torthe coarser particles of the mixture or inlproperly vaporized particles thereof will collect upon the said tubes and run down the sides thereof into the cups As the fuel mixture continues through the lower compartment of the vaporizer, ture will, as it is drawn around the e3.- haust tubes, thus be dried out and by the said tubes to be delivered into the 60111 )artment of the vaporizer. Upon thus entering this compertine t, the fuel ixture will then again be drawn around the said exhaust tubes 20 end 123 to be further dried out and efiectuully voletilized by the heat from tubes. From the middle mmpaztineilt, the fuel mixture will then pass into the-'nnoer com pertinent the vaporizer to fies; around, the upper ends of the exhaust tubes and be still further heated and effectually transformed into e dry heated homogeneous gas tor delivery to the engine. The fuel mixture collecting Within the cups 22 will, by coming in contact "with the heated wells of the exhaust pipes also become vaporized in due course to thence follow the tortuous passage through the vaporizer with the other gas flowing theretlirougli.

It will, therefore, be seen that I provide a particularly eiiicient arrangement for the purpose set forth and a construction Wherein the fuel mixture upon first entering the vaporizer will be initially acted upon to dry the mixture out and volatilize the mixture; will then be acted upon to further dry the mixture and will be finally acted upon to turn the mixture into a'd'ry heated homogeneous gas. In this connection attention is parti ularly directet. to the arrangement oi exhaust tubes 19. 520 and it. will be observed that .iuel

1 be efieztually heated and volatilize'd while,-

Lardner.

ture upon first entering any one of the three compartments of the vaporizer will initially strike against one of the centrally arranged tubes 19. The fuel mixture must then how around this tube and then inwardly away from the side walls of the casing 10 of the ing between. the said pair or oppositely disposed tubes 20 and 21 respectively, the fuel mixture will, of course, strike against the said tubes to be heated thereby and will then come in contact with the next adjacent centrality disposed tube 19. The fuel mixture will then be caused to flow around this tube and again be drawn inwardly away from the side walls of the casing between the confronting ends of the next adjacent pair of oppositely disposed tubes 20 and 21 to be heated therefrom when the fuel mixture will. finally strike the last of the centrally disposed tubes 19. Awordingly, as the fuel mixture flows through each oi' the compartments of the vaporizer, the mixture will be caused ,to pass between the exhaust tubesin such manner that the mixture will at the same time the fuel mixture will, owmg 'to the disposition of the exhaust tubes with respect to each other, be drawn away from, the side walls of the casing to thus minimize the cooling of the mixture from the said walls.

- Having thus described the invention,what

40 is claimed as new is:

1. A device of the character described ineluding a casing having top and bottom walls and provided with inlet and outlet passages, a partition within the casing and defining a tortuous fuel, passage therein. between said first mentioned passages, an exhaust tube fitted through the top and bottom walls of the casing and through said partition to project into the fuel passage, and a fuel cup at the lower extremity of said exhaust tube.

2. A device of the character described including a casing having top and bottom walls and provided Wit. inlet and outlet passages, a partition within the casing and defining a tortuous fuel passage therein between said firstihentioned passages, an exhaust tube fitted through the top and bottom walls and through said partition to project into the fuelpassage, and a fuel cup formed from the bottom wall at the lower extremity of said exhaust tube.

'3. In a device of thecharacter described, the combination with a vaporizer having an exhaust pipe provided with an elbow, of a earbureter mounted in said elbow and communicatin with the va orizer an 0 en ended sleeve surrounding the exhaust pipe and communicating. with the air inlet passage carbureter mounted in said elbow and com-' municating with the vaporizer, and a hood connected with thevaporizer and coacting with the said elbow to surround the car bureter.

In testimony whereof I ailix my signature.

WILLIAM PETZ. L. s.] 

